```html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>项目经验深度解析</title>
    <link rel="stylesheet" href="https://cdn.staticfile.org/font-awesome/6.4.0/css/all.min.css">
    <link rel="stylesheet" href="https://cdn.staticfile.org/tailwindcss/2.2.19/tailwind.min.css">
    <link href="https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap" rel="stylesheet">
    <style>
        body {
            font-family: 'Noto Sans SC', Tahoma, Arial, Roboto, "Droid Sans", "Helvetica Neue", "Droid Sans Fallback", "Heiti SC", "Hiragino Sans GB", Simsun, sans-serif;
            background-color: #f9f9f9;
            color: #333;
            line-height: 1.6;
        }
        .hero-gradient {
            background: linear-gradient(135deg, #6e8efb 0%, #a777e3 100%);
        }
        .section-card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .section-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        .drop-cap::first-letter {
            float: left;
            font-size: 4.5rem;
            line-height: 0.65;
            margin: 0.1em 0.2em 0.1em 0;
            font-weight: 700;
            color: #6e8efb;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2rem;
            top: 0;
            width: 1.5rem;
            height: 1.5rem;
            border-radius: 50%;
            background-color: #a777e3;
            border: 4px solid #fff;
            box-shadow: 0 0 0 2px #a777e3;
        }
        .timeline-connector {
            position: absolute;
            left: -1.25rem;
            top: 1.5rem;
            bottom: 0;
            width: 2px;
            background-color: #e5e7eb;
        }
    </style>
</head>
<body>
    <!-- Hero Section -->
    <div class="hero-gradient text-white py-24 px-6">
        <div class="container mx-auto max-w-5xl">
            <h1 class="text-4xl md:text-5xl font-bold mb-6 font-serif tracking-tight">
                项目经验<span class="text-yellow-300">深度解析</span>
            </h1>
            <p class="text-xl md:text-2xl mb-8 max-w-3xl leading-relaxed">
                从架构设计到技术实现，全面展示我在复杂项目中的技术能力与实战经验
            </p>
            <div class="flex flex-wrap gap-4">
                <div class="flex items-center bg-white bg-opacity-20 px-4 py-2 rounded-full">
                    <i class="fas fa-server mr-2"></i>
                    <span>系统架构</span>
                </div>
                <div class="flex items-center bg-white bg-opacity-20 px-4 py-2 rounded-full">
                    <i class="fas fa-bolt mr-2"></i>
                    <span>性能优化</span>
                </div>
                <div class="flex items-center bg-white bg-opacity-20 px-4 py-2 rounded-full">
                    <i class="fas fa-shield-alt mr-2"></i>
                    <span>安全设计</span>
                </div>
                <div class="flex items-center bg-white bg-opacity-20 px-4 py-2 rounded-full">
                    <i class="fas fa-users mr-2"></i>
                    <span>团队协作</span>
                </div>
            </div>
        </div>
    </div>

    <!-- Main Content -->
    <div class="container mx-auto max-w-5xl px-6 py-16">
        <!-- Project Overview Section -->
        <section class="mb-20">
            <div class="flex items-center mb-8">
                <div class="w-12 h-1 bg-purple-500 mr-4"></div>
                <h2 class="text-2xl font-bold text-gray-800">1. 项目背景与目标</h2>
            </div>
            
            <div class="grid md:grid-cols-2 gap-8">
                <div class="bg-white p-8 rounded-xl shadow-md section-card">
                    <div class="flex items-center mb-4">
                        <div class="w-10 h-10 rounded-full bg-purple-100 flex items-center justify-center text-purple-600 mr-4">
                            <i class="fas fa-info-circle text-xl"></i>
                        </div>
                        <h3 class="text-xl font-semibold">1.1 项目概述</h3>
                    </div>
                    <p class="text-gray-700 mb-4">
                        我曾主导开发一个电商平台的核心系统，该系统服务于百万级用户，日均PV超过500万。项目目标是为用户提供稳定、高效、安全的购物体验，同时支持业务的快速扩展。
                    </p>
                    <div class="flex items-center text-sm text-gray-500">
                        <i class="fas fa-calendar-alt mr-2"></i>
                        <span>项目周期: 2021.03 - 2022.08</span>
                    </div>
                </div>
                
                <div class="bg-white p-8 rounded-xl shadow-md section-card">
                    <div class="flex items-center mb-4">
                        <div class="w-10 h-10 rounded-full bg-blue-100 flex items-center justify-center text-blue-600 mr-4">
                            <i class="fas fa-exclamation-triangle text-xl"></i>
                        </div>
                        <h3 class="text-xl font-semibold">1.2 关键挑战</h3>
                    </div>
                    <ul class="space-y-2 text-gray-700">
                        <li class="flex items-start">
                            <i class="fas fa-circle text-xs text-blue-500 mt-2 mr-2"></i>
                            <span>高并发场景下的系统稳定性</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-circle text-xs text-blue-500 mt-2 mr-2"></i>
                            <span>复杂业务逻辑下的代码可维护性</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-circle text-xs text-blue-500 mt-2 mr-2"></i>
                            <span>分布式系统的一致性问题</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-circle text-xs text-blue-500 mt-2 mr-2"></i>
                            <span>数据安全与隐私保护的合规要求</span>
                        </li>
                    </ul>
                </div>
            </div>
        </section>

        <!-- System Architecture Section -->
        <section class="mb-20">
            <div class="flex items-center mb-8">
                <div class="w-12 h-1 bg-blue-500 mr-4"></div>
                <h2 class="text-2xl font-bold text-gray-800">2. 系统架构设计</h2>
            </div>
            
            <div class="bg-white p-8 rounded-xl shadow-md mb-8 section-card">
                <div class="flex items-center mb-6">
                    <div class="w-10 h-10 rounded-full bg-blue-100 flex items-center justify-center text-blue-600 mr-4">
                        <i class="fas fa-project-diagram text-xl"></i>
                    </div>
                    <h3 class="text-xl font-semibold">2.1 系统架构</h3>
                </div>
                <p class="text-gray-700 mb-6">
                    采用微服务架构将系统拆分为多个独立的服务模块，包括用户中心、商品服务、订单服务、支付服务等。通过API网关(Kong)统一管理服务路由，使用Nginx实现负载均衡，通过Spring Cloud Alibaba实现服务注册与发现。
                </p>
                <div class="bg-gray-50 p-6 rounded-lg">
